Status

For reporting web pages that need to be upgraded to support web standards and Gecko-based browsers. And for reporting add-ons that exhibit common problems that make Firefox run sub-optimally. (more info)

Security

(public)

User Story

>>> My Info: Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open http://reindernijhoff.net/2014/04/js1k-post-mortem-minecraft/
2. Look at the canvas with minecraft landscape
AR: All lines of canvas are shifted to the right: Nth line is shifted by N pixels
ER: Obviously, the author hasn't plan it to work this way. It works OK on IE and GoogleChrome
You can chek out (the same?) demo on js1k: http://js1k.com/2014-dragons/demo/1854
Notes:
1) This should be tested on zoom level = 100% on normal DPI (100%)
2) Well, currently it's unclear what is causing this bug on Firefox.
Somebody (probably me?) will have to debug it to check what is causing it - if it appears to be
some implementation mistake in Firefox, then component should be changed to "Core :: Canvas"
Otherwise this bug should be resolved as Wontfix, I guess, because nobody cares for one single blog
3) All testcases on js1k are extremely minimized, but this one has readable sources.
My plan was (first) to reproduce the same bug using readable sources (second) and then debug it